There can be several explanations
A) she wouldn't take the pill regularly
B) European hormonal pills are more effective
C) American males' fertility is so high that pills are ineffective.
All incorrect.
Then explain me why Italy has one of the lowest birth rates in the world. Do you think Italians don't have sex? Or have sex very rarely?
This is not an anecdote. It's data. It's numbers.
You didn't answer my question. Per usual.